Jan 152018
 

A 1966 Aerojet concept for a space probe with a nuclear reactor and ion engines. Note the largish thermal radiator “wings;” such things are usually left off spacecraft in science fiction, but they are a vital part of any nuclear spacecraft. Nukes, after all, are simply heat sources; in order to get useful electrical power out of them, the heat must be used to boil a working fluid which runs a turbogenerator; and the hot gas then needs to be condensed back to a liquid by radiating the heat way to space. And thermal radiation is a terribly slow and weak process, necessitating large radiators. Electricity can also be created with thermionic systems, which generate electricity across a thermal differential… hot on one side, cold on the other. But unless the cold side it attached to some radiators, the cold side will soon be just as hot as the hot side, and then… no thermal differential, no power generation.

Note also that even with a substantial powerplant and the sizable bank of ion engines, acceleration is going to be creakingly slow. Thus you can get away with spindly structures. The reactor itself is the tiny little tin can-looking thing, top and centerline; the U-shaped structure around it is a radiation shield protecting the electronics, structure and radiators from the radiation spat out by the reactor.

 Posted by at 1:39 am
Jan 082018
 

The Curtiss-Wright X-19 was a reasonably successful experimental tilt-prop VTOL aircraft from the first half of the 1960’s. Two aircraft were built; one crashed, one is at the USAF Museum in Dayton (I believe it’s in a restoration facility). The Defense Technical Information Center has two CW documents in PDF format that cover the technology of the X-19 in some detail:

THE X-19 V/STOL TECHNOLOGY: A CRITICAL REVIEW – final report

abstract

THE X-19 V/STOL TECHNOLOGY: A CRITICAL REVIEW – technical report

abstract

One of the documents includes a fold-out three-view diagram of the X-19, scanned in glorious Extra No color two-bit black and white as two separate pages. I’ve stitched them back together and tried to make the diagram look reasonably good; I’ve uploaded the full-rez result of my effort to the 2018-0 APR Extras folder on Dropbox, available to all APR patrons at the $4 level and higher.

Support the APR Patreon to help bring more of this sort of thing to light!

 

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 Posted by at 11:13 pm
Dec 302017
 

The rewards for APR Patrons have been issued. This month:

CAD Diagram: Marquardt hypersonic burning ramjet booster

Diagram: Convair Class VP Airplane High Performance Flying Boat

Document 1: Apollo Exploration Shelter System

Document 2: Chrysler Work Station Capsule (“work pod” for astronauts)

Document 3: Sikorsky S-97 “Raider” brochure

 

If you are interested in helping to preserve (and get copies of) this sort of thing, consider signing up for the APR Patreon.

 

patreon-200

 Posted by at 11:15 am
Dec 012017
 

These auctions for some of my cyanotype blueprints end tomorrow. Most have no bids, so if you want ’em they should go for cheap. These are some of the BIG blueprints.

 

https://www.ebay.com/itm/Space-Launch-System-1-72-scale-Diagram-Cyanotype-Blueprint/253278318585


https://www.ebay.com/itm/Large-Cyanotype-Blueprint-of-the-Consolidated-B-36-Bomber/253278304259


https://www.ebay.com/itm/Lockheed-Skunk-Works-hypersonic-X-24C-L301-cyanotype-blueprint/253278262083


https://www.ebay.com/itm/Boeing-2707-200-Supersonic-Transport-Isometric-cutaway-cyanotype-blueprint/253278272868


https://www.ebay.com/itm/Wasserfall-German-WWII-surface-to-air-missile-cyanotype-blueprint/253278294165

 

 

 

 Posted by at 9:31 pm
Nov 252017
 

I’ve put five of my large format cyanotypes on ebay, with starting bids far lower than the usual selling price.

https://www.ebay.com/itm/Space-Launch-System-1-72-scale-Diagram-Cyanotype-Blueprint/253278318585


https://www.ebay.com/itm/Large-Cyanotype-Blueprint-of-the-Consolidated-B-36-Bomber/253278304259


https://www.ebay.com/itm/Lockheed-Skunk-Works-hypersonic-X-24C-L301-cyanotype-blueprint/253278262083


https://www.ebay.com/itm/Boeing-2707-200-Supersonic-Transport-Isometric-cutaway-cyanotype-blueprint/253278272868


https://www.ebay.com/itm/Wasserfall-German-WWII-surface-to-air-missile-cyanotype-blueprint/253278294165

 

 

 

 Posted by at 5:14 pm
Nov 092017
 

I tried to scan some documents tonight, and the results were rather disturbing. I’ve seen this sort of thing before, but now it’s *really* bad. What could cause this, and can it be fixed… or is it time to take this scanner out into the woods and use it for target practice?

Note the lines. They *should* be straight. The paper original has straight lines, and the paper itself is good and flat, so it’s clearly something in the scanner itself.

 Posted by at 12:05 am
Oct 082017
 

Got them done a little early this time, so here’s a review of what the APR Patrons will be receiving:

Patrons will receive:

A proposal brochure on the C-135A cargo transport

A brochure about the Shuttle-C

A well illustrated NASA-produced booklet from the mid 1980’s describing the space station as them conceived

A large format diagram showing a wind tunnel model of the Titan III/Dyna Soar

A CAD diagram of the ca. 2001 Russian TsAGI Integrated Wing Body large passenger transport jetliner

If these are of interest, please consider signing on to the APR Patreon.

 Posted by at 12:32 pm